Combined muffler and cut-out



Jan. 25 1927.

J. c. BEERY COMBINED MUFFLER AND CUT-OUT ln/ventola 62369149.

Filed July l, 1926 Q) WW O o .Nl MIN w Patented .11.11.25, 1927.

- UNITED@ STATES PATENT OFFICE.

JOSEPH C. BEEBY, 0F KANSAS CITY, MISSOURI.

COMBINED MUFFLEB AND CUT-OUT.

Application `111er! July 1,

This invention relates to a combined muffier and cut-out for the exhausts of internal combustion'engines and has for an important object thereof the provision of a single structure embod ing these elements.

A further ob]ect of the invention is to providey a device of this character which may be very readily and cheaply manufactured and at the same time made, very durable and eilicient in service.

A further object of the invention is to provide a device of this characterwhich may be readily disassembled to cleanthe same.

A still further object of the invention is the provision of a device of this character wherein the exhaust ipe leading to the muler has associated t erewith baille structures enabling the use of the exhaust pipe as an additional ymulilerv chamber.`

These and other objects I attain by the construction shown in the accompan ing drawings, wherein for the urpose of i lustration'is shown a preferre embodiment of my invention and wherein l f Figure 1 is a longitudinal sectional view through a muiller constructed in accordance with Imy invention; Y

Figure 2 is a section on the line 2-2 of Figure 1; v

Figure 3 is a rear end elevation of the mlflier; -4 fr Y igure is a admenta rs ective of the rear end of the iiuliler srfiogin I)the manner of conductin the gases to t e exhaust pine after they ave. passed through the muiiler.

Referring. now more particularly to the drawings, the numeral 10 generally desig-X nates a tube adapted for connection with the muler pipe-11 of a vehicle. Surroundin this pipe at spaced points are disks 12 and 13 hereinafter referred to as the front and y rear disks. Each disk has a portion 14 fitting the periphery of. the tube 10 and gthrou h the portion 14 of the front disk and t e tube, aligning openings are formed for the'passage o cotter pin 15 or'a similar securing element. The front disk 12 is of slighttly greater diameter than the rear disk 13 an is provided at its periphery with an annulark flange 16 directed Atoward the disk 13.

The numerals 17 and 18 generally designate baille strips, there being one baille strip 17 and baille strips 18 of a desired number,-

strip 17 and the stri 192s. serial m. 119,976.

four being at resent disclosed. These'baflie strips are of t ie same width as the distance between the periphery of the tube 10 and the periphery of the disk 13 and each have their ends flanged at 19 and riveted to the disks 12 and 13 at 20. The strip 17 is imperforate while the strips 18.each have at one side of the longitudinal center thereof a plurality of openings 21. lThe strips'18 are so lsecured to the disks 12 and 13 that of alternate strips, the perforations of one strip "are arranged at one end, while in the v other strip, the perforations `are arranged at the opposite end thereof. The strips 17 and 18 are uniformly spaced about and readily disposed to the tube 1() and at their centers, these stri-ps are braced by braces 22, each having` angular end portions 23 flatly fitting against the associated strip. The angular end portions 23 at opposite sides of each strip are connected to one another p through the strip by a rivet 24. The tube 10 is providedwith a longitudinally extending series of openings 25 arranged between the strips 17 and an adjacent strip 18 at one side thereof, these openings-being arranged adjacent' the end of the strip 18 which has no perforations. Between the 18 adjacent thereto and at the op ite si e thereof, the end disk 13 has formedalierein an opening 26. Erom the outer surface of this disk a tube 26a aralleling the tube 10 extends in surroun ing strips 17 and 18 to produce an inlet chamber 130 and an exhaust chamber 31 arranged upon the opposite side of the strip 17 from the inlet chamber 30 and a plurality of intermediate chambers 32 through vwhich the gases must pass from the inlet chamber 30 to reach the exhaust chamber 31. The puri pose of longitudinally splitting. the cover tube 29t will, hereinafter anoear.

lRotatably directed through the tube 10 yat opposite ends of the muler thus rovided are a pair of 33 and34. lllle vso that the\ gases the tube 26* travel along shaft 34 which is arranged at the rear end of the tube has secured thereto an imperforate butterfly valve 35, while the shaft 33 has secured thereto a perforated butterfly valve' 36 through the openings 37 of. which gases may pass to 4the sections of the tubelying between the valves when the valves are in the closed position. If desired, the tube 1() may be extended'and other shafts 33 and valves 36 arranged therein. Since the cover tube 29 is split, it will be obvious that by removing thesecuring element of the rear end cover plate 27 and shifting this cover plate longi- `tudinally, the tube will be free to shift `and may be removed by aligning the slit thereof I with either shaft 33 and 34 to permit extension and cleaning of the chambers 30, 31

and 32 of the muiller. It will also be obvious 'that when the valves 35 and 36 are in the closed position, outlet of gasesfrom the open rear end 38 of the tube 10 is impossible. At this time, the gases will pass through thev openings 37 of the valve 36 1nto the chamber 39l formed between the valves, from this chamber 30 through openings 25 of the tube 10, thence through the Ychambers 32 by way of openings 21 to chamber 31 from which it passes to the atmosphere through the outlet tube 26. In passing through the chambers 30, 32 'and 31, the arrangement of the openings 21 in the strips 18will necessitate longitudinal travel lof the escaping fromrthe o ning 26 are s ent and the sounds of explisions practical y eliminated. The valve 36 with its perforations 37 provides an additional muiiier chamber 39 in which the gases may expand after being checked at the valve, thus further increasing the eiiciency of the muffier. When the valves 35 and 36 are in the open position, it will be obvious 'that thc ases will passdirectl into the atmosphererom the open rear en of the tube`10. Any suitable means may be provided for simultaneously operating the valves 35 and 36. In the present instance, each of the shafts 33 and 34 is shown as provided with a T- head 4.0, corresponding arms of the heads being connected by a llnk 41. The opposite arm of either of the heads may be connected with a` suitable control device 42. An extension 43'may be provided for the rear or exhaust end of the tube 10. To this extension,

is secured and the tube communicatesI with this extension, so that gases passing from the muler will be caused'x to thewsame path as those gases which are bi-'passed when the device is being employed as a cut-out. That portion ofthe tube 26s adjacent the end plate 13 parallels the tube 10, so that the false end vplate 27 may be shifted longitudinally of the tube 10 a distance suicient to permit release of the cover 16.

-'It willf'be obvious that-'the construction hereinbefore set forth is obviously capable of a certain range of change and modification'without materially departing from the spirit of the invention and I accordingly. do not limit myself to such specific structure except as hereinafter claimed.

'I claim u 1. In a. muiller, a cylindrical casing having end walls, a tube directed through said end walls and co-axial with the casing, means subdividing the space between the tube and wall of the casing into a series of muiiier chambers one of which is in communication with the atmosphere,the tube being in communication with a second chamber of the series, a butterfly valve arranged within the tube 'adjacent one end of the casing, a pervforated butterfly valve arranged within the tube adjacent the opposite end of the casin and means for simultaneously shifting sal valves to open and closed positions.

2. In a muffler, a tube, circular end mem bers carried by the tube and secured thereto at spaced points, a cylindrical wall connecting the peripheries of said end members, a pluralityofbailie strips each having their ends secured to said end members and eX- tending radially between the tube and said cylindricalwall, one of said strips being imperforate, the remainingstrips each having y openings formed therein. at one end, the gases in each chamber ,l

openings of each of the last named strips being at the opposite end thereof from the openings of' adjacent strips whereby a plurality of communicating muffler chambers 1,90 are produced, a connectlon between the muffier chamber at oneI side of the first named strip and the atmosphere and a connectlcn between the muffler chamber at the opposite side of said strip and the interior of the tube, therear end of said tube having a valve therein sealin the rear end of the tube when in closed position, the forward end of said tube likewise having a valve therein, the last named valve being perforated whereby it 11"I partially obstructs the'tube when in closed position.

3. In a. mulller, a tube, circular end members carried by the tube and secured thereto at. spaced points, a cylindrical. wall connect- 1n the peripheries'of said end members, a prality. of baille stripsv each having their endsl secured to said end members. and extending radiall between the tube and said cylindrical wal ,one of said strips being im-"Yz" iler chamber at one. side of the lirst named strip and the atmosphere,- a connection between the muliler chamber. at the opposite side of said strip and the interior of the tube, the`rear end of said tube having a valve therein sealing the rear end of the tube when in closed position, the forward end of said tube likewise having a valve therein, the last named valve being perforated whereby it partially obstructs the tube when in closed position and a connection between said valves for simultaneously shifting the same.

4. In combination, an exhaust tube, a muffler havingr its inlet communicating with the tube intermediate the inlet and outlet ends thereof, a valve between the point of communication and the out-let of the exhaust tube and in one position thereof closing the tuhe, a second valve between the point of communication and the inlet of the exhaust tube and in one position thereof partially closing the tube and means for simultaneously shifting said valves into or out of said positions.

5. In combination, an exhaust tube, a mufiler having its inlet communicating with the tube intermediate the inlet and outlet ends thereof, a valve between the point of communication and the outlet of the exhaust tube and in one position thereof closing the tube, a second valve between the point of communication and the inlet of the exhaust tube and in one position thereof partially closing the tube, means for simultaneously shifting said valves into or out of said positions and means connecting the outlet of the mutller with the exhaust tube between the outlet thereof and the first named valve.

In testimony whereof I hereunto atlix my signature.

JOSEPH C. BEERY. 

